82171700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2039}}^1$

素因数の和:2097

約数の個数: 72

約数和(自身を含む): 198320640

約数和(自身を除く): 116148940

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 130, 155, 260, 310, 325, 403, 620, 650, 775, 806, 1300, 1550, 1612, 2015, 2039, 3100, 4030, 4078, 8060, 8156, 10075, 10195, 20150, 20390, 26507, 40300, 40780, 50975, 53014, 63209, 101950, 106028, 126418, 132535, 203900, 252836, 265070, 316045, 530140, 632090, 662675, 821717, 1264180, 1325350, 1580225, 1643434, 2650700, 3160450, 3286868, 4108585, 6320900, 8217170, 16434340, 20542925, 41085850, 82171700]

約数ペア:

[(1, 82171700), (2, 41085850), (4, 20542925), (5, 16434340), (10, 8217170), (13, 6320900), (20, 4108585), (25, 3286868), (26, 3160450), (31, 2650700), (50, 1643434), (52, 1580225), (62, 1325350), (65, 1264180), (100, 821717), (124, 662675), (130, 632090), (155, 530140), (260, 316045), (310, 265070), (325, 252836), (403, 203900), (620, 132535), (650, 126418), (775, 106028), (806, 101950), (1300, 63209), (1550, 53014), (1612, 50975), (2015, 40780), (2039, 40300), (3100, 26507), (4030, 20390), (4078, 20150), (8060, 10195), (8156, 10075)]